1 files changed, 26 insertions, 33 deletions

diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c
index c4020c3d7857..19cb97733937 100644
--- a/arch/um/kernel/signal.c
+++ b/arch/um/kernel/signal.c
@@ -1,29 +1,17 @@
 /*
- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
  * Licensed under the GPL
  */
 
-#include "linux/stddef.h"
-#include "linux/sys.h"
-#include "linux/sched.h"
-#include "linux/wait.h"
-#include "linux/kernel.h"
-#include "linux/smp_lock.h"
 #include "linux/module.h"
-#include "linux/slab.h"
-#include "linux/tty.h"
-#include "linux/binfmts.h"
 #include "linux/ptrace.h"
+#include "linux/sched.h"
+#include "asm/siginfo.h"
 #include "asm/signal.h"
-#include "asm/uaccess.h"
 #include "asm/unistd.h"
-#include "asm/ucontext.h"
-#include "kern_util.h"
-#include "signal_kern.h"
-#include "kern.h"
 #include "frame_kern.h"
+#include "kern_util.h"
 #include "sigcontext.h"
-#include "mode.h"
 
 EXPORT_SYMBOL(block_signals);
 EXPORT_SYMBOL(unblock_signals);
@@ -46,9 +34,9 @@ static int handle_signal(struct pt_regs *regs, unsigned long signr,
         current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
         /* Did we come from a system call? */
-        if(PT_REGS_SYSCALL_NR(regs) >= 0){
+        if (PT_REGS_SYSCALL_NR(regs) >= 0) {
                 /* If so, check system call restarting.. */
-                switch(PT_REGS_SYSCALL_RET(regs)){
+                switch(PT_REGS_SYSCALL_RET(regs)) {
                 case -ERESTART_RESTARTBLOCK:
                 case -ERESTARTNOHAND:
                         PT_REGS_SYSCALL_RET(regs) = -EINTR;
@@ -68,17 +56,17 @@ static int handle_signal(struct pt_regs *regs, unsigned long signr,
         }
 
         sp = PT_REGS_SP(regs);
-        if((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags(sp) == 0))
+        if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags(sp) == 0))
                 sp = current->sas_ss_sp + current->sas_ss_size;
 
 #ifdef CONFIG_ARCH_HAS_SC_SIGNALS
-        if(!(ka->sa.sa_flags & SA_SIGINFO))
+        if (!(ka->sa.sa_flags & SA_SIGINFO))
                 err = setup_signal_stack_sc(sp, signr, ka, regs, oldset);
         else
 #endif
                 err = setup_signal_stack_si(sp, signr, ka, regs, info, oldset);
 
-        if(err){
+        if (err) {
                 spin_lock_irq(&current->sighand->siglock);
                 current->blocked = *oldset;
                 recalc_sigpending();
@@ -88,7 +76,7 @@ static int handle_signal(struct pt_regs *regs, unsigned long signr,
                 spin_lock_irq(&current->sighand->siglock);
                 sigorsets(&current->blocked, &current->blocked,
                           &ka->sa.sa_mask);
-                 if(!(ka->sa.sa_flags & SA_NODEFER))
+                if (!(ka->sa.sa_flags & SA_NODEFER))
                         sigaddset(&current->blocked, signr);
                 recalc_sigpending();
                 spin_unlock_irq(&current->sighand->siglock);
@@ -109,14 +97,16 @@ static int kern_do_signal(struct pt_regs *regs)
         else
                 oldset = &current->blocked;
 
-        while((sig = get_signal_to_deliver(&info, &ka_copy, regs, NULL)) > 0){
+        while ((sig = get_signal_to_deliver(&info, &ka_copy, regs, NULL)) > 0) {
                 handled_sig = 1;
                 /* Whee!  Actually deliver the signal.  */
-                if(!handle_signal(regs, sig, &ka_copy, &info, oldset)){
-                        /* a signal was successfully delivered; the saved
+                if (!handle_signal(regs, sig, &ka_copy, &info, oldset)) {
+                        /*
+                         * a signal was successfully delivered; the saved
                          * sigmask will have been stored in the signal frame,
                          * and will be restored by sigreturn, so we can simply
-                         * clear the TIF_RESTORE_SIGMASK flag */
+                         * clear the TIF_RESTORE_SIGMASK flag
+                         */
                         if (test_thread_flag(TIF_RESTORE_SIGMASK))
                                 clear_thread_flag(TIF_RESTORE_SIGMASK);
                         break;
@@ -124,9 +114,9 @@ static int kern_do_signal(struct pt_regs *regs)
         }
 
         /* Did we come from a system call? */
-        if(!handled_sig && (PT_REGS_SYSCALL_NR(regs) >= 0)){
+        if (!handled_sig && (PT_REGS_SYSCALL_NR(regs) >= 0)) {
                 /* Restart the system call - no handlers present */
-                switch(PT_REGS_SYSCALL_RET(regs)){
+                switch(PT_REGS_SYSCALL_RET(regs)) {
                 case -ERESTARTNOHAND:
                 case -ERESTARTSYS:
                 case -ERESTARTNOINTR:
@@ -137,22 +127,25 @@ static int kern_do_signal(struct pt_regs *regs)
                         PT_REGS_ORIG_SYSCALL(regs) = __NR_restart_syscall;
                         PT_REGS_RESTART_SYSCALL(regs);
                         break;
-                }
+                }
         }
 
-        /* This closes a way to execute a system call on the host.  If
+        /*
+         * This closes a way to execute a system call on the host.  If
          * you set a breakpoint on a system call instruction and singlestep
          * from it, the tracing thread used to PTRACE_SINGLESTEP the process
          * rather than PTRACE_SYSCALL it, allowing the system call to execute
          * on the host.  The tracing thread will check this flag and
          * PTRACE_SYSCALL if necessary.
          */
-        if(current->ptrace & PT_DTRACE)
+        if (current->ptrace & PT_DTRACE)
                 current->thread.singlestep_syscall =
                         is_syscall(PT_REGS_IP(&current->thread.regs));
 
-        /* if there's no signal to deliver, we just put the saved sigmask
-         * back */
+        /*
+         * if there's no signal to deliver, we just put the saved sigmask
+         * back
+         */
         if (!handled_sig && test_thread_flag(TIF_RESTORE_SIGMASK)) {
                 clear_thread_flag(TIF_RESTORE_SIGMASK);
                 sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);